2001717031 has 2 divisors, whose sum is σ = 2001717032. Its totient is φ = 2001717030.

The previous prime is 2001717017. The next prime is 2001717061. The reversal of 2001717031 is 1307171002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001717031 - 2¹¹ = 2001714983 is a prime.

It is a super-2 number, since 2×2001717031² = 8013742144390909922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001716993 and 2001717011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001717061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000858515 + 1000858516.

It is an arithmetic number, because the mean of its divisors is an integer number (1000858516).

Almost surely, 2^2001717031 is an apocalyptic number.

2001717031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001717031 is an equidigital number, since it uses as much as digits as its factorization.

2001717031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 2001717031 is about 44740.5524217125. The cubic root of 2001717031 is about 1260.2815006804.

Adding to 2001717031 its reverse (1307171002), we get a palindrome (3308888033).

The spelling of 2001717031 in words is "two billion, one million, seven hundred seventeen thousand, thirty-one".